The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 03, 1995
Filed:
Feb. 25, 1993
Haim Feigenbaum, Irvine, CA (US);
John S Szalay, Corona Del Mar, CA (US);
Blake F Woith, Orange, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
A test probe for use in testing a liquid crystal display device includes a rigid carrier block (20) having a lower surface to which is secured a flexible circuit (44) having a free end (50) aligned with the free end (26) of the carrier block. A plurality of projecting probe contact features (54) are integrally formed on traces (56) of the flexible circuit (44) and project from the plane of the flexible circuit adjacent the free end. An elastomeric back-up pad (40) is interposed between the carrier block (20) and the projecting contact features (54). The lower side of the carrier block is recessed (30) and the flexible circuit is pre-formed to the configuration of the recess in which it is mechanically secured by a rigid clamp or pressure bar (60). Conductive traces (56) of the flexible circuit have inner ends (58) bearing electrical contacts (68) for connection to test circuitry. The rigid carrier block (20) is mounted to enable the projecting probe contact features to be pressed against a line of contacts (16) on a display device panel (12) while maintaining a clearance between the aligned free ends of the carrier block (26), elastomer (42) and flexible circuit (50) and the edge (70) of a member (18) that overlies the display panel (12) and extends closely adjacent to and parallel to the row of display panel contacts (16).